Ceiling-plate



(No Model.)

B. T. CRANE.

CEILING PLATE.

No. 299,203. Patented May 27, 1884.

Fig.1

Price.

PATENT RICHARD T. CRANE, OF CHICAGO, ILLINOIS.

CEILING-PLATE.

SPECIFICATION forming part of Letters Patent No. 299,203, dated May 27,1884. Application filed April 22, 1884. (No model.)

To aZZ whom it may concern:

Be it known that I, RICHARD T. CRANE, residing at Chicago, in the countyof Cook and State of Illinois, and a citizen of the United States, haveinvented new and useful Improvements in OeilingPlates, of which thefollowing is a full description, reference being had to the accompanyingdrawings, in which- Figure 1 is a plan showing the two parts of theplate together. Fig. 2 is a plan showing the two parts detached. Fig. 3is a vertical section.

Heretofore it has been common to use ceiling-plates made from a singlepiece of metal, which must be placed over the end of the pipe with whichused. The object of my improvement is to provide a ceiling-plate whichneed not be placed over the end of the pipe, which 1 attain by makingthe ceiling-plate in two parts, held together by interlocking dovetailedjoints, as illustrated in the drawings, in which A represents one halfor part, and B the other half or part, of my ceiling-plate. The part Ais provided with two projections, a, and the part B is provided with tworecesses, b, to receive the projections a. These projections andrecesses are dovetail in form, and they are a little larger at thebottom than at the top, and when the two parts are together they fitnicely and cannot be drawn apart laterally. Vhen the two parts aretogether, as

shown in Fig. 1, there is a central opening, 0,

in size corresponding with the pipe with which it is to be used.

c is a set-screw, passing through an enlarge ment, d, 011 the part B,which enlargement is provided with a screw-threaded hole.

In use the plate is to be applied to a pipe by first separating the twoparts from each other, as shown in Fig. 2, and then bringing themtogether from opposite sides of the pipe with which they are to be used,and inserting the projections a into the recesses b, and then pushingthe two parts to the place which they are to occupy against the ceilingor wall. Then by means of the set-screw the ceiling-plate can be clampedupon the pipe, and will be firmly held in place by the set-screw withoutthe aid of screws or other fastenings passing through the plate and intothe ceiling or wall.

The parts A B can be made of malleable iron or other suitable metal.

In describing my invention I have regarded RICHARD T. CRANE.

Witnesses:

O. W. Bonn, ALBERT H. ADAMS.

